Chemistry 5070/22 — October/November 2011
Cambridge O-Level · Theory · worked solutions for every part, with the mark scheme
Topics Stoichiometry · Acids, Bases and Salts · Chemistry of the Environment · Organic Chemistry · Atoms, Elements and Compounds · Experimental Techniques and Chemical Analysis · +6 more
Choose from the following list of elements to answer the questions below.
calcium
chlorine
hydrogen
iodine
nickel
sodium
vanadium
zinc
Each element can be used once, more than once, or not at all.
Which element
forms an oxide which is amphoteric,
______
is a catalyst in the hydrogenation of alkenes,
______
oxidises aqueous bromide ions to bromine,
______
is used in water purification to kill bacteria,
______
is formed at the cathode when a dilute aqueous solution of sodium chloride is electrolysed,
______
can be used in the sacrificial protection of iron?
______
The rest of this paper
8 more questions- Q2Chemistry of the Environment · Atoms, Elements and Compounds9M
- Q3Organic Chemistry · Stoichiometry · Chemistry of the Environment7M
- Q4Chemical Energetics · Experimental Techniques and Chemical Analysis · Chemistry of the Environment · Acids, Bases and Salts12M
- Q5Atoms, Elements and Compounds · States of Matter · Stoichiometry11M
- Q6Stoichiometry · Chemical Reactions · Chemistry of the Environment · Acids, Bases and Salts10M
- Q7Acids, Bases and Salts · Electrochemistry · Chemical Reactions · Experimental Techniques and Chemical Analysis · Stoichiometry10M
- Q8Organic Chemistry · Stoichiometry10M
- Q9Stoichiometry · Metals · Acids, Bases and Salts · Atoms, Elements and Compounds · Chemical Reactions · Experimental Techniques and Chemical Analysis10M